Searched for: department%3A%22Telecommunications%22
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document
Noordermeer, M. (author)
This thesis describes the implementation of available bandwidth link-state update policies for Quality of Service routing. Periodic, threshold-based and class-based policies are described and implemented in a QoS router testbed, using Quagga and its OSPF-API for low-level communications. The implementation is thoroughly tested using unit tests...
master thesis 2011
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Verzeilberg, J.M.M. (author)
After a MIMO revolution in the telecommunications world, this technology becomes increasingly popular in the radar world. The radar end-users are demanding more and more of their systems, while the targets are designed to have an as small as possible RCS, which makes them more difficult to detect. With multiple transmitters and receivers it may...
master thesis 2011
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Groot, S.R. (author)
Automatic detection of humans is an important part of many security and surveillance applications. Automatic processing diminishes the effect of human errors on the detection and allows extensive analysis after detection. Radar has certain advantages for human detection because of its all-weather and day and night capability, as well the fact it...
master thesis 2011
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Dong, K. (author)
ZigBee is a robust wireless communication standard which is based on physical and MAC layer on IEEE 802.15.4. ZigBee is also critically limited by the low data rate standard when there are many source nodes in the network. How to fairly and efficiently access the network and delivery the packets should be considered as one of the crucial issues....
master thesis 2011
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Yang, Y. (author)
UWB radar is the most promising radar system for the future. In addition, by combining the UWB and array signal processing, one can obtain 3-D images of the objects for classification and identification, which is very useful in many applications. To achieve high-resolution real-time 3-D imaging radar, two essential items are missing in the...
doctoral thesis 2011
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Dufournet, Y. (author), Russchenberg, H.W.J. (author)
Radar-based retrievals are often employed to characterize the microphysical properties of cloud hydrometeors, i.e. their phases, habits, densities as well as their respective size and orientation distributions. These techniques are based on a synergetic use of different cloud observation sensor(s) and microphysical model(s) where the information...
journal article 2011
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Li, Z. (author)
In numerous radar applications, new problems concerning target detection in a clutter environment may occur. These problems cannot be solved using classical methods on the base of our current utilization of the reflection properties of various objects and their environment. Radar features that may assist in solving these problems are sought in...
doctoral thesis 2011
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Shirmohamadi, B. (author)
In this thesis, I have investigated the self-optimization approach in order to solve a generic resource allocation challenge. The challenge is defined for a general ICT system serving two classes of jobs: low and high priority. The high priority jobs require a higher quality of service compared to the low priority jobs. In order to fulfill this...
master thesis 2011
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Zhijie, R. (author)
In the field of Error Correcting Coding (ECC), the concept of ''stopping set'' recently became a hot topic. A stopping set for a parity-check matrix is the set of bits which would cause the iterative decoding progress in Binary Erasure Channel (BEC) to ''stop'' when it is erased. It has already been proved in several papers that the decoding...
master thesis 2011
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Calu, A. (author)
In this research, a new approach on Internet analysis was adopted. Dragon-Lab is capable of detection, identification, and temporal and spacial localization of Internet backbone anomalous states based on two end-to-end metrics, packet delay and packet loss, and traceroutes information of the measured Internet paths. The anomalous states or...
master thesis 2011
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Wang, H. (author), Winterbach, W. (author), Van Mieghem, P.F.A. (author)
journal article 2011
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Stout, E.P. (author)
To meet traffic demand predictions, the global air traffic management (ATM) system needs to be changed. Several visions on future ATM operations exist. A commonality between the different visions is 4D Trajectory management. This function enables plan-based operation as opposed to the state-based approach of the present system. Plan-based...
master thesis 2011
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Yuan, W. (author)
As an emerging short-range wireless technology, IEEE 802.15.4/ZigBee Wireless Sensor Networks (WSNs) are increasingly used in the fields of home control, industrial control, consumer electronics, energy management, building automation, telecom services, personal healthcare, etc. IEEE 802.15.4/Zig-Bee WSNs share the same 2.4 GHz license-free...
doctoral thesis 2011
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Le Chevalier, F. (author), Krasnov, O.A. (author), Deudon, F. (author), Bidon, S. (author)
Wideband (high range resolution) radars have been proposed [7] as high performance systems for detection of small targets in adverse environments, due to their small resolution cells and non-ambiguity in range and velocity (velocity ambiguity removed by the measurement of the range migration of the target during the pulse train duration)....
conference paper 2011
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Vosooghi Dizaji, M. (author)
In the present work scattering theory in water clouds has been studied. Alternative forms for Maxwell equations have been developed and discretized in order to calculate backscattered mean powers from cloud particles. With simplified discretized equations the backscattered electric field has been approximated for a single particle. This...
master thesis 2011
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Huang, Z. (author)
In the development of wireless sensor networks, power consumption is one of the bottlenecks for wide applications. In order to improve the energy efficiency of wireless sensor networks, a wakeup radio scheme is presented. The main transceiver that is responsible for data communication is in the sleep mode most of the time. An additional device...
master thesis 2011
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Sathyanarayanan, S.P. (author)
master thesis 2011
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Ayele, E.D. (author)
master thesis 2011
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Mulyawan, R. (author)
Wavelet Packet based Multi-Carrier Modulation (WPM) offers an alternative to the well-established Orthogonal Frequency Division Multiplexing (OFDM) as an efficient multicarrier modulation technique. It has strong advantage of being generic transmission scheme whose actual characteristics can be widely customized to fulfill several requirements...
master thesis 2011
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Mukti, P.H. (author)
Wireless telecommunication services are growing rapidly both in terms of the underlying technology as well as in the nature of the applications. The trends point to further growth in the foreseeable future. However, the dynamic nature of the wireless channel places fundamental limitations on the performance of wireless communication system....
master thesis 2011
Searched for: department%3A%22Telecommunications%22
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